'outer' definitions:
Definition of 'outer'
From: WordNet
adjective
Being on the outside or further from a center; "spent hours adorning the outer man"; "the outer suburbs" [ant: inner(a)]
adjective
Located outside; "outer reality"
adjective
Being on or toward the outside of the body; "the outer ear"
Synonyms of 'outer'
From: Moby Thesaurus